CP DC BUFFER 24V 20A

CP DC BUFFER 24V 20A

Buffer module, 30 V, 24 V

Item No. 1251220000
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Approvals General ordering data Dimensions and weights Temperatures Environmental Product Compliance Rated data UL Input Output General data EMC / shock / vibration Insulation coordination Electrical safety (applied standards) Connection data (input) Connection data (output) Connection data (signal) Signalling Classifications

Approvals

Approvals
![](https://mdcop.weidmueller.com/mediadelivery/rendition/900_319230/-S800/-T1z1mm-S80)  
ROHS
Conform  
UL File Number Search
[UL Website](https://database.ul.com/cgi-bin/XYV/cgifind/LISEXT/1FRAME/gfilenbr.html)  
Certificate No. (cURus)
E349964  

General ordering data

Version
Buffer module, 30 V, 24 V  
Order No.
1251220000  
Type
CP DC BUFFER 24V 20A  
GTIN (EAN)
4050118043174  
Qty.
1  items
Delivery status
This article will no longer be available in the future.  
Available until
31.12.2021  
Alternative product
[2786240000](~/p/2786240000)  

Dimensions and weights

Depth
150  mm
Depth (inches)
5.905  inch
Height
130  mm
Height (inches)
5.118  inch
Width
66  mm
Width (inches)
2.598  inch
Net weight
1,274  g

Temperatures

Storage temperature
-40 °C...85 °C  
Operating temperature
-25 °C...70 °C  
Humidity
5...95 %, no condensation  

Environmental Product Compliance

RoHS Compliance Status
Compliant  
REACH SVHC
Lead 7439-92-1  
SCIP
30bf869c-8adc-4ed2-ad02-c1fec963e943  

Rated data UL

Certificate No. (cURus)
E349964  

Input

Connection system
Screw connection  
Input current
0…22 A  
Input voltage, max.
30  V
Input voltage, min.
22.5  V
Max. approved input current
22  A
Rated input voltage
24 V DC  
Surge protection
31 - 34 V (only at discharge)  

Output

Output current
20A  
Output current, max.
22  A
Output voltage, note
Corresponds to the input voltage  
Overload protection
≥ 22 A (only at discharge)  
Parallel connection option
Yes, without diode module  
Surge protection
31 - 34 V (only at discharge)  

General data

Buffer times
250 ms at 20 A, 6 s at 1 A  
Clip-in foot
metal  
Degree of efficiency
95 %  
Humidity
5...95 %, no condensation  
Max. perm. air humidity (operational)
5 %…95 % RH  
MTBF
  • According to Standard:
    MLT-HDBK-217F
  • Operating time (hours), min.:
    111,900 h
  • Ambient temperature:
    25 °C
  • Input voltage:
    24 V
  • Output power:
    480 W
  • Duty cycle:
    100 %
  • According to Standard:
    MLT-HDBK-217F
  • Operating time (hours), min.:
    103,100 h
  • Ambient temperature:
    40 °C
  • Input voltage:
    24 V
  • Output power:
    480 W
  • Duty cycle:
    100 %
Protection degree
IP20  
Storage medium
Internal condenser  

EMC / shock / vibration

Interference immunity test acc. to
EN 61000-4-2 (ESD)  
EN 61000-4-3 and EN 61000-4-8 (fields)  
EN 61000-4-4 (burst)  
Noise emission in accordance with EN55032
Class B  

Insulation coordination

Insulation voltage, input/output
1  kV

Electrical safety (applied standards)

For use with electronic equipment
Acc. to EN50178 / VDE0160  

Connection data (input)

Conductor cross-section, AWG/kcmil , max.
6  
Conductor cross-section, AWG/kcmil , min.
26  
Conductor cross-section, flexible , min.
0.5  mm²
Conductor cross-section, rigid , max.
16  mm²
Conductor cross-section, rigid , min.
0.5  mm²
Connection system
Screw connection  
Tightening torque, max.
1.5  Nm
Tightening torque, min.
1.2  Nm
Wire connection cross section, flexible (input), max.
16  mm²

Connection data (output)

Conductor cross-section, AWG/kcmil , max.
6  
Conductor cross-section, AWG/kcmil , min.
26  
Conductor cross-section, flexible , max.
16  mm²
Conductor cross-section, flexible , min.
0.5  mm²
Conductor cross-section, rigid , max.
16  mm²
Conductor cross-section, rigid , min.
0.6  mm²
Tightening torque, max.
1.5  Nm
Tightening torque, min.
1.2  Nm

Connection data (signal)

Wire connection cross-section, flexible (signal), max.
1.5  mm²
Wire connection cross-section, flexible (signal), min.
0.2  mm²
Wire connection method
Screw connection  
Wire cross-section, AWG/kcmil , max.
15  
Wire cross-section, AWG/kcmil , min.
30  
Wire cross-section, solid , max.
1.5  mm²
Wire cross-section, solid , min.
0.2  mm²

Signalling

Status indicator
Green LED  
Status relay (max. load)
Input voltage OK (30 V AC/DC 2A)  
Ready for operation (24 V AC/DC 300 mA)  

Classifications

ETIM 6.0
EC002850  
ETIM 7.0
EC002850  
ETIM 8.0
EC002850  
ETIM 9.0
EC002850  
ETIM 10.0
EC002850  
ECLASS 9.0
27-04-06-92  
ECLASS 9.1
27-04-92-01  
ECLASS 10.0
27-04-06-92  
ECLASS 11.0
27-04-06-92  
ECLASS 12.0
27-04-06-92  
ECLASS 13.0
27-04-06-92  
ECLASS 14.0
27-04-06-92  
ECLASS 15.0
27-04-06-92